Carbohydrates Knowledge-Based Download PDF

Questions

1. 1.

   Which storage polysaccharide is composed of highly branched chains of $\alpha$-glucose units and serves as the primary energy reserve in animal liver and skeletal muscle tissues?

   • A) Amylose
   • B) Glycogen
   • C) Sucrose
   • D) Peptidoglycan
2. 2.

   Which structural carbohydrate contains nitrogen in its modified glucose subunits and forms the exoskeleton of arthropods as well as the cell walls of fungi?

   • A) Glycogen
   • B) Amylopectin
   • C) Chitin
   • D) Amylose
3. 3.

   Which of the following pairs of monosaccharides are structural isomers sharing the molecular formula $C_6H_{12}O_6$, with one classified as an aldose and the other as a ketose?

   • A) Glucose and galactose
   • B) Ribose and deoxyribose
   • C) Glyceraldehyde and dihydroxyacetone
   • D) Glucose and fructose
4. 4.

   Which of the following carbohydrates is a structural polysaccharide in plant cell walls composed of unbranched glucose chains joined by $\beta$-1,4-glycosidic bonds?

   • A) Glycogen
   • B) Starch
   • C) Chitin
   • D) Cellulose
5. 5.

   Which of the following statements correctly describes the formation of a disaccharide from two monosaccharide units?

   • A) A peptide bond is formed between the monomers through a hydrolysis reaction that consumes water.
   • B) A covalent glycosidic linkage is formed through a dehydration reaction that releases a water molecule.
   • C) An ionic bond forms between opposing carbon rings without producing or consuming any byproduct.
   • D) A phosphodiester bond connects hydroxyl groups via the addition of a molecule of water.